Informix Error -3758

Reasons / Common Causes

-3758 fires when the C function pf_nxfield() is passed the tag name of a field not in the current table — per the official guidance, the cursor isn't allowed to enter such fields.

1. A field tag name passed to pf_nxfield() that isn't in the current table, per the official guidance — the direct, only cause.

Solutions / Resolution

1. Pass a field tag name that belongs to the current table, consistent with the official guidance's identification of table membership as the requirement.

Examples

Checking a tag's table membership before calling pf_nxfield

Confirm which table a field tag's underlying column belongs to (via the form's ATTRIBUTES section) before passing it to pf_nxfield() while operating on a different table's row.

Diagnostic Checks

1. Check which table the field tag passed to pf_nxfield() belongs to, and confirm it matches the current table.

Related Errors / Related Topics

• -3756 — "The selected field tag-name cannot be assigned a value at this time." A closely related error, about the same not-in-current-table condition surfaced during value assignment rather than pf_nxfield() navigation.
• -3755 — "The selected display-only field tagname cannot be accessed." A related cursor-placement error, about a field being marked DISPLAYONLY rather than not belonging to the current table.

pf_nxfield() was passed a tag name not in the current table — the cursor can't enter it; check the tag's table membership.